Home / 11,747.12-16,186.50-8,759.43

Finding the Fourth Proportional to 11,747.12, 16,186.50 and 8,759.43

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Solution

The fourth proportional to 11,747.12, 16,186.50 and 8,759.43 is: 12,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.12 : 16,186.50 = 8,759.43 : x
  2. Step 2: Convert to fraction form
    11,747.12/16,186.50 = 8,759.43/x
  3. Step 3: Cross multiply
    11,747.12x = 16,186.50 × 8,759.43
  4. Step 4: Simplify right side
    11,747.12x = 141,784,513.70
  5. Step 5: Solve for x
    x = 141,784,513.70/11,747.12
  6. Step 6: Final answer
    x = 12,069.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.